Eroare de compilare: user.cpp:5: error: expected constructor, destructor, or type conversion before ‘<’ token user.cpp: In function ‘int main()’: user.cpp:13: error: ‘b’ was not declared in this scope user.cpp:14: error: ‘c’ was not declared in this scope user.cpp:14: error: ‘b’ was not declared in this scope user.cpp:15: error: ‘d’ was not declared in this scope user.cpp:16: error: ‘c’ was not declared in this scope user.cpp:17: error: ‘d’ was not declared in this scope user.cpp:18: error: ‘b’ was not declared in this scope user.cpp:19: error: ‘d’ was not declared in this scope user.cpp:20: error: ‘c’ was not declared in this scope user.cpp:21: error: ‘d’ was not declared in this scope user.cpp:23: error: ‘d’ was not declared in this scope user.cpp:24: error: ‘b’ was not declared in this scope user.cpp:26: error: ‘c’ was not declared in this scope user.cpp:28: error: ‘c’ was not declared in this scope user.cpp:9: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:11: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result